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Sigma-Aldrich

Acido etilendiamminotetraacetico

meets analytical specification of Ph. Eur., BP, USP, FCC, 99.0-101.0%

Sinonimo/i:

EDTA, EDTA-Na2, Edatamil, Edetato, Etilendiamminotetraacetato di disodio, Sequestrene Na2

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About This Item

Formula empirica (notazione di Hill):
C10H14N2Na2O8 · 2H2O
Numero CAS:
Peso molecolare:
372.24
Beilstein:
3900609
Numero CE:
Codice UNSPSC:
12352107
ID PubChem:
NACRES:
NA.77

agenzia

tested according to BP
tested according to Ph. Eur.
tested according to USP

Livello qualitativo

Conformità normativa

tested according to FCC

Saggio

99.0-101.0%

Forma fisica

crystals

Qualità

meets analytical specification of Ph. Eur., BP, USP, FCC

Impiego in reazioni chimiche

reagent type: chelator

Impurezze

residual solvents, complies
≤0.001% cyanide (CN)
≤0.001% heavy metals (as Pb)
≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

Perdita

8.7-11.4% loss on drying, 200 °C, 3 h

pH

4-5 (20 °C, 5%)

Punto di fusione

248 °C (dec.) (lit.)

Solubilità

water: soluble 100 g/L at 20 °C

Anioni in tracce

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤500 mg/kg

Cationi in tracce

As: ≤1 mg/kg
Ca:, in accordance
Fe: ≤10 mg/kg
Pb: ≤10 mg/kg

applicazioni

pharmaceutical (small molecule)

Stringa SMILE

O.O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

InChI

1S/C10H16N2O8.2Na.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2
OVBJJZOQPCKUOR-UHFFFAOYSA-L

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Descrizione generale

Ethylenediaminetetraacetic acid disodium salt dihydrate, referred to as EDTA is a widely used chelator of divalent cations like Ca⁺². It can inhibit proteases dependent on metal ions, such as, calcium-dependent cysteine proteases. EDTA also acts as a chelator of the Zn ion, inhibiting metalloproteases that require zinc for activity.

Applicazioni

Ethylenediaminetetraacetic acid disodium salt dihydrate has been used along with Na2HPO4 and citric acid for preparing Na2EDTA-McIlvaine buffer. Aqueous solution of Ethylenediaminetetraacetic acid disodium salt dihydrate has also been used for photocatalytic hydrogen production
Chelante di cationi bivalenti. Inibisce enzimi, come le metalloproteasi, che per essere attivi necessitano di cationi bivalenti.

Altre note

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Pittogrammi

Exclamation markHealth hazard

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

Organi bersaglio

Respiratory Tract

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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Evaluation of EDTA as the chelator in the biuret reagent.
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Clinical chemistry, 19(6), 621-623 (1973-06-01)
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Ethylenediaminetetraacetic acid (EDTA)-dependent pseudothrombocytopenia (PTCP) is the phenomenon of a spurious low platelet count due to antiplatelet antibodies that cause platelet clumping in blood anticoagulated with EDTA. The aggregation of platelets in EDTA-dependent PTCP is usually prevented by other anticoagulants
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